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IBM z/OS BUFUSEWARN in the SMFPRMxx must be properly set.


Finding ID Version Rule ID IA Controls Severity
V-223549 ACF2-OS-000130 SV-223549r533198_rule Medium
It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required. Without this notification, the security personnel may be unaware of an impending failure of the audit capability, and system operation may be adversely affected. Audit processing failures include software/hardware errors, failures in the audit capturing mechanisms, and audit storage capacity being reached or exceeded. This requirement applies to each audit data storage repository (i.e., distinct information system component where audit records are stored), the centralized audit storage capacity of organizations (i.e., all audit data storage repositories combined), or both. Satisfies: SRG-OS-000046-GPOS-00022, SRG-OS-000343-GPOS-00134, SRG-OS-000344-GPOS-00135
IBM z/OS ACF2 Security Technical Implementation Guide 2022-06-22


Check Text ( C-25222r504686_chk )
Refer to IEASYS00 member in SYS1.PARMLIB Concatenation. Determine proper SMFPRMxx member in SYS1.PARMLIB.

If BUFUSEWARN is set for 75 (75%) or less this is not a finding.
Fix Text (F-25210r504687_fix)
Configure the BUFUSEWARN statement in SMFPRMxx to 75 (75%) or less.